That's the problem. Someone needs to teach discraft a little PR. Maybe they don't want to keep the public updated. If scaled composites sees someone in their rearview, they can easily accelerate their project.

I'd love to see discraft come from behind and snatch the X-prize.
I've found One website about blastwave technology, they even sell plans for all you gearheads to tinker with.

He also has a wealth of information on homemade traditional pulse jets. and PDE's

Crazy? you know that guy was building the infamous (semi-infamous) sub-$5000 cruise missile. Last I heard he was trying to find a way of test firing/flying it when the New Zealand government stopped it.